9873858 has 8 divisors (see below), whose sum is σ = 19747728. Its totient is φ = 3291284.

The previous prime is 9873839. The next prime is 9873859. The reversal of 9873858 is 8583789.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

9873858 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (9873859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 822816 + ... + 822827.

It is an arithmetic number, because the mean of its divisors is an integer number (2468466).

Almost surely, 2^9873858 is an apocalyptic number.

9873858 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9873858 is a wasteful number, since it uses less digits than its factorization.

9873858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1645648.

The product of its digits is 483840, while the sum is 48.

The square root of 9873858 is about 3142.2695619568. The cubic root of 9873858 is about 214.5337507544.

It can be divided in two parts, 9873 and 858, that added together give a triangular number (10731 = T₁₄₆).

The spelling of 9873858 in words is "nine million, eight hundred seventy-three thousand, eight hundred fifty-eight".